Is there a boot manager that can handle this?

[Alex Goncharov]

,--- You/Doug (Thu, 26 Aug 2010 16:47:39 -0700) ----*
| Windows and the *1st* FreeBSD partition just fine, but if I try to boot
| the 2nd FreeBSD partition grub just boots the first one again.

Are you using a chainloader?

You should, in my experience; something like that in grub's menu.lst
or grub.cfg:

----------------------------------------
title fbsd-b64 -- chainloader (hd0,2,a)
  root (hd0,2,a)
  makeactive
  chainloader +1

title fbsd-b32 -- chainloader (hd0,3,a)
  root (hd0,3,a)
  makeactive
  chainloader +1
----------------------------------------

-- Alex -- alex-goncharov at comcast.net --